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mysys/queues.c:
  Comments for new functions (no code change)
mysys/thr_alarm.c:
  Updated comment
This commit is contained in:
unknown 2003-10-15 16:55:24 +03:00
commit 48446c0f73
2 changed files with 29 additions and 5 deletions
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26
mysys/queues.c
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@ -61,6 +61,24 @@ int reinit_queue(QUEUE *queue, uint max_elements, uint offset_to_key,
DBUG_RETURN(0);
}
/*
Resize queue
SYNOPSIS
resize_queue()
queue Queue
max_elements New max size for queue
NOTES
If you resize queue to be less than the elements you have in it,
the extra elements will be deleted
RETURN
0 ok
1 Error. In this case the queue is unchanged
*/
int resize_queue(QUEUE *queue, uint max_elements)
{
byte **new_root;
@ -68,14 +86,16 @@ int resize_queue(QUEUE *queue, uint max_elements)
if (queue->max_elements == max_elements)
DBUG_RETURN(0);
if ((new_root= (byte **) my_realloc((void *)queue->root,
(max_elements+1)*sizeof(void*), MYF(MY_WME))) == 0)
(max_elements+1)*sizeof(void*),
MYF(MY_WME))) == 0)
DBUG_RETURN(1);
set_if_smaller(queue->elements, max_elements);
queue->max_elements=max_elements;
queue->root=new_root;
queue->max_elements= max_elements;
queue->root= new_root;
DBUG_RETURN(0);
}
void delete_queue(QUEUE *queue)
{
DBUG_ENTER("delete_queue");